AA Blocks, Supplier of Building Blocks, Catalysts, Inhibitors, Biochemicals, Reference Compounds, Deuterated Compounds, Custom Synthesis



AA Blocks Terms And Conditions of Sale






All prices are shown in U.S. Dollars. Prices are F.O.B. Shipping Point. Terms of sale are net 30 days from invoice date, unless otherwise stated. AA BLOCKS reserves the right to request advance payment at its discretion. Bank transfer, Paypal and cheque are accepted forms of payment. Every effort will be made to maintain pricing for the catalog time period, but prices are subject to change without notice. Prices will be confirmed at the time of order entry.




Quantity discounts may be available to customers for large orders of any single-unit item listed in the catalog. Please contact us for discounts.




Every attempt will be made to process and ship orders within 7 days. When complete shipments cannot be made, partial shipments may be made at our discretion unless otherwise requested. Customers will be promptly notified of backordered and/or out-of-stock items. Regardless of method of shipment, D.O.T. and I.A.T.A. regulations require the use of special packaging for certain hazardous chemicals.Additional charges for hazardous packaging and transportation will be added to the invoice.We will notify the customer of these costs when orders are placed and will attempt to reduce the costs by consolidating compatible items. Courier details and fee schedules are provided on our website.




We will not accept return shipments without prior authorization and shipping instructions. The situations which give rise to returns are often complicated and require individual attention and special handling. Unidentified or unauthorized return shipments will be discarded without credit. Be sure to contact us and we will do our best to resolve each situation in an equitable manner. Charges will be imposed on catalog items returned due to your error. Orders over $1,000.00 will have a 70% minimum restocking charge imposed. Orders less than $1,000.00 will not be authorized for return. Items which are proven defective or non-conforming to our specifications will be replaced at no charge or, at our discretion, credit issued upon receipt of returned goods. All claims for replacement or credit must be made within 7 days of receipt of goods. The liability of AA BLOCKS for any and all claims, losses or damages arising for any cause, including our negligence, shall in no event exceed the purchase price of the materials with respect to which the cause arose.In no event shall AA BLOCKS be liable for incidental or consequential damages.




All products described in this catalog are for research purposes only. They are in no way to be used for food, drug, household or any other applications. These chemicals are research chemicals as defined under TSCA. As such they should be used or handled only by or under direct supervision of "Technically qualified individuals" as defined in 40CFR710.2(aa). The hazards, physiological and toxicological properties of most of our chemicals have not yet been fully investigated and/or determined. Therefore, all of our chemicals should be handled with the utmost caution when they are used, stored or during disposal. AA BLOCKS makes no guarantee of any results and assumes no liability for damage to any person, persons or property resulting from incorrect handling, storage,usage or disposal of our products. AA BLOCKS is not responsible for conditions and actions which are beyond our control.




We supply MSDS' to our customers with the delivery of our product as required by the OSHA Hazard Communication Standard and many state laws. MSDS' are also available to customers upon request. Every effort is made to provide current known information. However, the nature of new research chemicals precludes complete knowledge. AA BLOCKS makes no claim as to the completeness, correctness, currency, or comprehensiveness of information provided in our MSDS'. AA BLOCKS's products are intended for use by qualified professionals only, who are familiar with the potential hazards,and have been fully trained in proper safety, laboratory and chemical handling procedures.




When disposing of a chemical, careful consideration must be given to the chemical and physical properties of the compound. It is imperative all national, state and local laws and regulations governing chemical disposal be observed and followed. All waste disposal of chemicals should be handled only by individuals who have received specific chemical education and training and who are conversant with chemical handling and safety procedures. Since the hazards and physical properties of any chemical may not yet be fully determined, only technically qualified persons familiar with potential hazards should be responsible for their disposal. The following reference books may be used as a resource: The Manufacturing Chemists Associations "Guide for Safety in the Chemical Laboratory", published by Van Nostrand Reinhold, New York, 1972. Prudent Practices for Handling Hazardous Chemicals in Laboratories,1981, and "Prudent Practices for Disposal of Chemical from Laboratories", 1983,published by National Academy Press, Washington, D.C.




Many chemicals in this catalog have been made on a research basis only. Their chemical, physiological, and toxicological properties and hazards have not yet been fully investigated or determined. When known, hazard class, Merck Index, Chemical Abstract and RTECS Numbers are provided for each chemical. AA BLOCKS does not accept any responsibility for this information's correctness, completeness, or that it may fully provide all hazardous properties of each chemical. Chemicals may be extremely toxic or otherwise hazardous. The absence of warning as to these conditions cannot and should not be interpreted as an indication of safety. All products should be handled only by individuals familiar with their potential hazards and who have been fully trained in proper safety, laboratory, and chemical handling procedures. MSDS' will be provided as required by OSHA's Hazard Communication standard.


If a product is hazardous, buyer will be informed the UN class with an UN number when ordering . This number is for one of the nine classes determined by the UN Committee of Experts on the Transport of Dangerous Goods. The UN classes relate to the type of hazard:



2.Compressed gases

3.Flammable and combustible liquids

4.Flammable solids, spontaneously combustible materials, and materials that are dangerous when wet

5.Oxidizers and organic peroxides

6.Toxic materials

7.Radioactive materials

8.Corrosive materials

9.Miscellaneous hazardous materials





AA BLOCKS (Company/Seller) acknowledges receipt of Buyer's order, and accepts Buyer's order expressly conditional on Buyer's assent to the terms and conditions herein contained, whether additional to or different from those contained in Buyer's purchase order or any other form or document heretofore or hereafter supplied by Buyer or Seller. Buyer will be deemed to have assented to those terms and conditions unless Seller receives written notice of any objection within 7 days after Buyer's receipt of this form. Seller's failure to object to provisions contained in any purchase order or any other form or document from Buyer shall not be construed as a waiver of these terms and conditions nor an acceptance of any such provision. This contract and the terms and conditions shall be governed by and construed in accordance with the laws of the United States.



No change by Seller of any term or condition of this contract or any of Seller's rights to remedies hereunder shall be binding on Seller, nor shall the order hereby acknowledged be cancelled or changed by Buyer, unless Seller shall expressly consent hereto in writing by Seller's authorized officer. There are no representations, agreements, promises or understandings between Buyer and Seller that are not expressed herein.



Unless specified in writing, all sales are F.O.B. Seller's shipping point. "F.O.B" means "ex factory" as stated in the "incoterms 1953" published by the International Chamber of Commerce, Paris, France. Delivery of goods to the carrier at Seller's plant or other loading point shall constitute delivery to Buyer. Regardless of shipping terms, all risk of loss or damage in transit shall be borne by Buyer. Seller reserves the right to make delivery in installments, all such installments to be separately invoiced and paid for when due per invoice, without regard to subsequent deliveries. Delay in delivery of any installment shall not relieve Buyer of its obligation to accept remaining deliveries. Immediately upon Buyer's receipt of any goods shipped hereunder, Buyer shall inspect the same and shall notify Seller in writing of any claims for shortages, defects or damages and shall hold the goods for Seller's written disposition. If Buyer shall fail to so notify Seller within 7 days after the goods have been received by Buyer, such goods shall conclusively be deemed to conform to the terms and conditions hereof and to have been irrevocably accepted by the Buyer. Seller shall not be liable for any loss, damage or penalty as a result of any delay in or failure to manufacture, deliver or otherwise perform hereunder due to any cause beyond Seller's reasonable control, including without limitation, unsuccessful reactions, act of Buyer, embargo or other governmental act regulation or request affecting the conduct of Seller's business, fire, explosion, accident, theft, vandalism, riot, acts of war, strikes or other labor difficulties, lightning, flood, windstorm or other acts of God, delay in transportation, or inability to obtain necessary labor, fuel, materials, supplies or power. Goods may not be returned for credit except with Seller's written permission, and then only in strict compliance with Seller's return of shipment instructions.



If Seller is unable for any reason to supply the total demands for goods specified in Buyer's order, Seller may allocate its available supply among any or all buyers on such basis as Seller may deem fair and practical, without liability for any failure of performance which may result.



Terms of sale are payment prior to shipment, unless otherwise stated. Materials will be billed at the price in effect at the time shipment is made. If the financial condition of Buyer does not justify the terms of payment specified, Seller may demand full or partial payment in advance before proceeding with the contract. If Buyer defaults in any payment when due, under this or any other order, Seller at its option without prejudice to its other lawful remedies, may defer delivery or cancel this contract.



Any use tax, sales tax, excise tax, duty, custom, inspection or testing fee, or any other tax, fee or charge of any nature whatsoever imposed by any government authority, on or measured by the transaction between Seller and Buyer shall be paid by the Buyer in addition to the prices quoted or invoiced. In the event Seller is required to pay any such tax, fee or charge, Buyer shall reimburse Seller; or, in lieu of such payment, Buyer shall provide Seller at the time the order is submitted an exemption certificate or other document acceptable to the authority imposing the tax, fee or charge. Due to special handling requirements and the hazardous nature of products sold, Seller will charge a hazardous handling fee according to the fee schedule below:


Inaccessible (Haz class 6.1), Domestic                                 $45.00

Inaccessible (Haz class 6.1), International                            $70.00

Accessible (Haz class 3, 4, 5 or 8), Domestic                       $90.00

Accessible (Haz class 3, 4, 5 or 8), International                  $142.00



Unless specified differently in writing, Seller warrants that its products shall conform to the description of such products as provided in the Seller's catalog at the time of sale.




It is Buyer's responsibility to testing the product to confirm that it matches the specification of compound before using it. There will be no warranty or refund if any problem is found after the product has been used.


Seller's warranties made in connection with this sale shall not be effective if Seller has determined, in its sole discretion, that Buyer has misused the products in any manner or has failed to use the products in accordance with instructions, if any, furnished by the Seller.


Seller's sole and exclusive liability and Buyer's exclusive remedy with respect to products provided to Seller's satisfaction to be defective or non-conforming shall be, in Seller's sole discretion, (1) the replacement of such products without charge or (2) refund of the purchase price upon the disposition of such products in accordance with Seller's instructions. SELLER SHALL NOT BE SUBJECT TO ANY OTHER OBLIGATIONS OR LIABILITIES, WHETHER ARISING OUT OF BREACH OF CONTRACT, WARRANTY, TORT (INCLUDING NEGLIGENCE OR STRICT LIABILITY) OR ANY OTHER THEORY OF LAW WITH RESPECT TO GOODS SOLD OR TECHNICAL SERVICES RENDERED BY SELLER, OR WITH RESPECT TO ANY UNDERTAKINGS, ACTS OR OMISSIONS RELATING THERETO. SELLER SHALL NOT BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL OR CONTINGENT DAMAGES.



Seller certifies that to the best of its knowledge its products are supplied in compliance with applicable requirements of the Fair Labor Standards Act, as amended, and the Occupational Safety and Health Standards Act of 1970 and regulations, rules, and orders issued pursuant thereto. Seller also certifies that to the best of its knowledge, it is in compliance with Executive Order 11246 and its regulations, rules and orders issued pursuant thereto; that it does not discriminate against any employed or prospective employee because of race, creed, color, national origin, sex, age or handicap, nor permit discrimination in any form nor maintain segregated facilities for its employees; that it actively pursues employment of minorities, females, handicapped, disabled veterans and veterans of the Vietnam era; and that it uses its best efforts to award contracts to and place purchase orders with minority business enterprises and with labor surplus area concerns and small business concerns.



Seller's products are intended for laboratory use only and, not to be used for other purposes, including, but not limited to as, or a component in, a food, drug, or medical device (including in vitro diagnostic reagents) or cosmetics as defined in the Federal Food, Drug and Cosmetic Act, as amended, nor as a pesticide as defined in the Federal Insecticide, Fungicide and Rodenticide Act, as amended. Buyer acknowledges that the products purchased hereunder have not been tested by Seller for safety and efficacy in a food, drug, cosmetic or pesticide unless otherwise stated by Seller in writing furnished to Buyer. Buyer expressly represents and warrants to Seller that Buyer will properly test, use, manufacture and market any products purchased from Seller and any final articles made from them in accordance with the practices of a reasonable person who is an expert in the field and in strict compliance with all applicable federal and state food, drug, device, and cosmetic and other relevant laws and regulations, now and hereinafter enacted. Buyer further warrants to Seller that any final articles manufactured from Seller's products shall not be adulterated or misbranded within the meaning of the Federal Food, Drug and Cosmetic Act and shall not be articles which may not, under Sections 404, 505, or 512 of the Act, be introduced into interstate commerce. Buyer acknowledges that Seller's products are intended primarily for laboratory use and they may not be on the inventory of Existing Chemical Substances defined pursuant to the Toxic Substances Control Act (TSCA). Seller assumes no responsibility to assure that products purchased hereunder may be used in a commercial application as defined under TSCA. Buyer has the responsibility to verify the hazards and to conduct any further research necessary to learn the hazards involved in using products purchased from Seller. Buyer also has the duty to warn Buyer's customers and any auxiliary personnel (such as freight handlers, etc.) of any risks involved in using or handling the products. Buyer agrees to comply with instructions, if any, furnished by seller relating to the use of the products and not misuse the products in any manner. If the products purchased from Seller are to be repackaged, relabeled, or used as starting material or components of other products, Buyer will verify Seller's assay of the products. Buyer agrees to indemnify and hold Seller harmless from and against any and all losses, damages and expenses (including attorney's fees and other costs of defending any action) that Seller may sustain or incur as a result of any claim of negligence, breach of implied warranty, strict liability in tort or other theory of law, by Buyer, its officers, agents or employees, its successors or assigns, and its customers, whether direct or indirect, in connection with the use of Seller's products, or by reason of Buyer's failure to perform the obligations herein contained. Buyer shall notify Seller within 7 days of Buyer's receipt of knowledge of any accident involving Seller's products resulting in personal injury or damage to property, and Buyer shall fully cooperate with seller in the investigation and determination of the cause of such accident and shall make available to Seller all statements, reports and tests made by Buyer or made available to Buyer by others. The furnishing of such information to Seller and any investigation by Seller shall not constitute an assumption of any liability by Seller.



Seller does not warrant that the use or sale of the products delivered hereunder will not infringe the claims of any United States or other patent covering the product itself or the use thereof in combination with other products or in the operation of any process.



At Buyer's request, Seller may furnish technical assistance and information with respect to Seller's products. Unless otherwise agreed, all such technical assistance and information will be provided gratis, and Buyer assumes sole responsibility for results obtained in reliance thereon. Seller makes no warranties of any kind or nature with respect to technical assistance or information provided by it. Any suggestions by Seller regarding use, application or suitability of the product shall not be construed as an express warranty unless expressly designated as such in writing signed by Seller.




A. Severability. All provisions of this agreement shall be considered as separate items and conditions, and in the event that any one shall be held illegal, invalid or unenforceable, all other provisions hereof shall remain in full force and effect as if the illegal, invalid, or unenforceable provision were not a part hereof, provided however, that whenever possible, the illegal, invalid, or unenforceable provisions shall be deemed modified and effective to the extent it may thereby be made legal, valid and enforceable.

B. Binding Effect. All provisions and terms of the contract between Buyer and Seller shall inure to the benefit of and become binding upon the heirs, executors, administrators, successors, representatives, receivers, trustee, and assigns of the parties.

C. Assignability. Neither this agreement nor any right or interest hereby granted to the Buyer whether under the contract between Buyer and Seller or otherwise shall be assigned by the Buyer or by operation of law without the prior written consent of an authorized officer of Seller and any assignment without such written consent shall be null and void and shall not bind Seller.



Privacy Policy


AA BLOCKS recognizes the importance of protecting our customer's privacy in today's society. We follow both legal guidelines and our own strict internal policy in order to protect our customer's personal information.


The following details will help you understand how we collect, use and protect your data.

1.Acquisition of customer's personal information When customers order catalogs or other product information from us, we collect the necessary information needed in order to process your request or contact you in case there is a problem or other question. Note we only collect the information you agree to provide us. By using our website and providing us with personal information, you consent to our use of that information pursuant to this policy. You can always refuse to provide your personal information, however this may lead us to not being able to process your request.


2.Use of personal information We will use personal information for the purposes of processing your request, to notify you of our products, services, promotional events or other special offers that may be of interest to you, or to fulfill any legal requirements.


3.Supply of personal information to third parties a. We will not supply personal information to third parties without the prior consent of the individual concerned, except as required or permitted by law. b. When personal information is used together with third parties or when personal information is legitimately outsourced to third parties in order to complete a task, we will investigate the third parties thoroughly and monitor them to ensure that appropriate measures are taken to protect any personal information revealed.


4.Management organization and systems for personal information protection A senior employee of the company is responsible for carrying out the appropriate management of personal information. This senior manager will have the following responsibilites: a. Ensure that the personal information of customers is managed safely. b. Take necessary and appropriate measures against improper electronic access (including by our own employees), computer viruses, etc. to this personal information in order to prevent the loss, destruction, alteration, and/or leakage of personal information. c. Educate all our executives and employees to protect and properly manage our customer's personal information. d. Monitors continuous performance, maintenance, and improvement of this policy to ensure it is used appropriately.


5.Disclosure, correction, discontinuance of use, and deletion of personal information Each customer or individual has the right to ask for disclosure, correction, discontinuance of use, and deletion of their personal information, by contacting us at the number (email address) below.


6. Links to other websites The website may contain links to other sites on the internet that are within the AA BLOCKS Group companies and are bound by those websites' privacy policy and not the responsibility of AA BLOCKS.


7.Contacting AA BLOCKS about our policy or your personal information If you have any questions or comments about our policy, or would like to make changes to your own data, please contact us at [email protected].




© 2017 AA BLOCKS, INC. All rights reserved.